Hi, Part of what you would like is already there. If you run ghci with -Wall, you will get warnings about defaulting polymorphic expressions. ``` Prelude> 1 <interactive>:2:1: Warning: Defaulting the following constraint(s) to type ‘Integer’ (Num a0) arising from a use of ‘it’ at <interactive>:2:1 (Show a0) arising from a use of ‘print’ at <interactive>:2:1 In the first argument of ‘print’, namely ‘it’ In a stmt of an interactive GHCi command: print it 1 Prelude> ``` --trevor On Thu, Apr 28, 2016 at 8:05 AM Johannes Waldmann < johannes.waldmann@htwk-leipzig.de> wrote:
Hi,
If you ask GHCi to *evaluate* a polymorphic expression, then it will ...
Sure, I understand the motivation for defaulting, and I am not suggesting to change anything there.
What I am saying is that I see no way to have ghci show * the defaulted type, * or the even the fact that defaulting did happen.
- J.
_______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs